(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

VÁLVULA AUXILIAR DE DISTRIBUIÇÃO

ConcedidaInvention Patent

Application data

Number

PI8201473

Type

Invention Patent

Filing

03/17/1982

Publication

02/01/1983

Progress at the INPI

  1. Filing03/17/82
  2. Publication02/01/83
  3. Examination07/19/83
  4. Allowance04/16/85
  5. Grant10/01/85
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/01/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. S. (pessoa física)

DE

Inventors

K. S. (pessoa física)

DE

M. R. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

G 81 07 889.7 · 03/18/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/01/1985

RPI 780

Deferimento

#9.1

04/16/1985

RPI 756

Exigência - art. 36 da LPI

#6.1

05/29/1984

RPI 710

Solicitação de exame técnico

#4.1

07/19/1983

RPI 665

Publicação do pedido de patente

#3.1

02/01/1983

RPI 641

Pedido de patente depositado

#2.1

04/27/1982

RPI 601

Carta-patente expirada

#21.1

Patente extinta em 17/03/97

07/01/2008

RPI 1956

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.